Trivariate B-spline solid construction by pillow operation and geometric iterative fitting  

作　　者：Hongwei LIN Hao HUANG Chuanfeng HU 

机构地区：[1]School of Mathematical Science, State Key Laboratory of CAD&CG, Zhejiang University

出　　处：《Science China(Information Sciences)》2018年第11期228-230,共3页中国科学（信息科学）（英文版）

基　　金：supported by National Natural Science Foundation of China (Grant No. 61379072)

摘　　要：While the traditional geometric design community focuses on the design of curves and surfaces, the advent of isogeometric analysis (IGA)[1] has made the development of methods for designing trivariate B-spline solids (TBSs) imperative. In IGA, a valid TBS should have a positive Jacobian value at every point in its domain. A negative Jacobian value at any point in the domain of the TBS can render the IGA invalid.

关 键 词：TBS Trivariate B-spline solid construction by pillow operation and geometric iterative fitting GFD FIGURE 

分 类 号：N[自然科学总论]